Updated mediawiki/extensions
Project: mediawiki/extensions/Annotator  67dcb19a5dc988450581fe98f78cca97f77a519e

Added the db schema

The annotations are stored as Json in the annotation column and revision id
identifies a particular page the annotations are associated with.
The annotations are stored in the format as given here:
https://github.com/okfn/annotator/wiki/Annotation-format

Change-Id: I78860ce3d7049cda82177b0bbdf45065053a703f